Home / 3,898.35-5,385.42-3,373.47

Finding the Fourth Proportional to 3,898.35, 5,385.42 and 3,373.47

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Solution

The fourth proportional to 3,898.35, 5,385.42 and 3,373.47 is: 4,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.35 : 5,385.42 = 3,373.47 : x
  2. Step 2: Convert to fraction form
    3,898.35/5,385.42 = 3,373.47/x
  3. Step 3: Cross multiply
    3,898.35x = 5,385.42 × 3,373.47
  4. Step 4: Simplify right side
    3,898.35x = 18,167,552.81
  5. Step 5: Solve for x
    x = 18,167,552.81/3,898.35
  6. Step 6: Final answer
    x = 4,660.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.